Exemplo n.º 1
0
 public static function getInstance()
 {
     if (empty(SerialNumberGenerator::$instance)) {
         SerialNumberGenerator::$instance = new SerialNumberGenerator();
     }
     return SerialNumberGenerator::$instance;
 }
Exemplo n.º 2
0
<?php

require_once 'imports.php';
$next_serial1 = SerialNumberGenerator::getInstance()->getNextSerial();
$next_serial2 = SerialNumberGenerator::getInstance()->getNextSerial();
$next_serial3 = SerialNumberGenerator::getInstance()->getNextSerial();
?>
<html>
	<body>
		<p><?php 
echo $next_serial1;
?>
</p>
		<p><?php 
echo $next_serial2;
?>
</p>
		<p><?php 
echo $next_serial3;
?>
</p>
	</body>
</html>